← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 771 · 40 questions
TalentJR

How it works (Round and adjust): Round up: 49 is 50 − 1, 98 is 100 − 2. Multiply by the round number. Take away the number times the bit you added.

NameDateTime takenScore ___ / 40
  1. 1.15 × 49 =
  2. 2.10 × 99 =
  3. 3.14 × 29 =
  4. 4.33 × 98 =
  5. 5.20 × 99 =
  6. 6.23 × 98 =
  7. 7.6 × 29 =
  8. 8.3 × 29 =
  9. 9.8 × 9 =
  10. 10.12 × 98 =
  11. 11.4 × 19 =
  12. 12.8 × 49 =
  13. 13.36 × 98 =
  14. 14.13 × 9 =
  15. 15.4 × 29 =
  16. 16.6 × 9 =
  17. 17.11 × 19 =
  18. 18.4 × 19 =
  19. 19.3 × 98 =
  20. 20.15 × 9 =
  21. 21.7 × 99 =
  22. 22.12 × 29 =
  23. 23.37 × 99 =
  24. 24.4 × 19 =
  25. 25.14 × 29 =
  26. 26.6 × 98 =
  27. 27.5 × 9 =
  28. 28.17 × 99 =
  29. 29.12 × 19 =
  30. 30.14 × 99 =
  31. 31.33 × 98 =
  32. 32.8 × 19 =
  33. 33.3 × 9 =
  34. 34.8 × 19 =
  35. 35.3 × 29 =
  36. 36.21 × 98 =
  37. 37.10 × 19 =
  38. 38.28 × 99 =
  39. 39.6 × 29 =
  40. 40.10 × 99 =

Answer key

  1. 735
  2. 990
  3. 406
  4. 3234
  5. 1980
  6. 2254
  7. 174
  8. 87
  9. 72
  10. 1176
  11. 76
  12. 392
  13. 3528
  14. 117
  15. 116
  16. 54
  17. 209
  18. 76
  19. 294
  20. 135
  21. 693
  22. 348
  23. 3663
  24. 76
  25. 406
  26. 588
  27. 45
  28. 1683
  29. 228
  30. 1386
  31. 3234
  32. 152
  33. 27
  34. 152
  35. 87
  36. 2058
  37. 190
  38. 2772
  39. 174
  40. 990

Free tables & multiplication lessons, practice and worksheets at talentjr.in/multiplication-tables